Wrench.



No. 806,061; PATENTED NOV. 28, 1905.

w. BUTLER.

WRENCH.

ABPLIUATION FILED mm, 1905.

- .Witn D UNITED STATES PATENT 1 OFFICE.

' JOHN w. BUTLER, OF SHREVEPORT, LOUISIANAl I WRENCH. A A

Specification of Letters Patent.

Patented Nov. 28, 1905.

Application filed May 9, 1905. Serial No. 259,588.

To all whom, it mag concern.-

Be it known that I, J OHN W. BUTLER, acitizen of the United States, residing atShreveport, in the parish of Caddo, State of Louisiana, have invented certain new and useful Improvements in Wrenches; and I do'hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to wrenches, and more particularly to that class known as end wrenches, and has for its object to provide a wrench of this kind which, while being simple and cheap, will be extremely efiicient and which will embody few parts, the devicebeing thus unlikely to become deranged.

I Another object is to provide a wrench to be so arranged that itwill grip a body when moved in either direction.

Other objects and advantageswill .be ap-r parent from the following description, and it will be understood that changes in the specific construction shown, and describedmay be made within the scope of the claims and that any suitable materials'may be used without departing'from the spirit of the invention.

In the drawings forming a portion of this specification, and in which like characters of reference indicate similar parts in both views,.Figure l is a longitudinal section showing the invention in use.

Referring now to the drawings, the present invention comprises an angular stem 5,

having an enlarged concentrically-disposed cylindrical head 6 at one end, the latter having an eccentrically-located circular recess 7 in its outer face 8, the face 9 of the head from which the stem extends -being known as the inner face thereof. Formed in the inner end wall 10 of the recess 7 there is a considerably smaller circular recess 11, which I I is disposed ecoentricallyto the recess 7 registered with the recess 11.

Revolubly disposed within the recess 7 there is a hardened disk 12, which forms the gripping-jaw of the wrench, and this disk has an eccentrioally-located passage 13 formed therethrough, which is so disposed that through rotation of the disk in the recess 7 it may be The'circum scribing wall of this passage 13 is provided with teeth 14:, which extend transversely of the wall, and these. teeth are directed oppositely from the point w of the wall which lies nearest to the periphery of the disk,- there be- Fig. 2 is a bottom plan view with the retaining-plate removed.

ing thus formed two series of teeth a and b, A

in alinement with the recess 11 and which is.

of a diameter equal to that of this recess.

In use a stud-screw or other cylindrical body is engaged in the passages Hand 18 with its end projecting into the recess 11, after which the stem 5 is grasped with a suitable implement and is turned, which will cause the teeth of one of the series a and 6 to bite into the.

body, when the latter may be turned with the wrench. It will readily be seen that rotation of the Wrench in the opposite direction will causethe other series of teeth' to bite into the body, and it-will thus be understood that the present wrench may be used to rotate a body in either direction;

What is claimed is 1. A wrench comprising a head having a stem extending from the rearward face thereof and lying concentric therewith, said head having an eccentrically-located cylindrical recess in its forward face and a second recess in the inner wall of said recess, a disk revolubly disposed within the recess and having an ecbeing rotatable to register its passage with the second-named recess, said passage having a toothed wall and a cover-plate disposedagainst the outer face of the head and having a passage formed therethrough alining with the second-named recess.

2. A wrench comprising a head having an eccentrically-located recess in one of its faces and having a recess in the inner wall of said first-named recess, a disk revolubly disposed in the first-named recess and having a passage formedtherethrough,said disk being movable to bring its passage into and out of registration with the second-named recess, the wall of said passage having oppositely-directed series of transverse teeth formed thereupon, and a cover-plate for the first-named recess, said cover-plate having a passage formed therethrough registering with the second-named recess.

.centric passage'formed therethrough, said disk 3. A Wrench comprising a head provided with an angular stem, a recess formed in the head and lying eceentrically to the stem, a recess formed in the inner Wall of the first-named recess, a jaw member slidably disposed in the first-named recess and having a passage formed therethrough and disposed for registration With the second-named recess through movement of the disk, said passage having oppositely-directed series of teeth upon its Wall, a cover-plate disposed over the first-named recess and the head and having a boss extending into said recess, an attaching device engaged in said cover-plate and the head, said coverplate having a passage formed therethrough and alining with the second-named recess.

In testimony whereof I afiix my signature in presence of two witnesses.

J. \V. BUTLER.

Witnesses:

J. .H. MILLER, J. B. HUTOHINSON. 

